Improvement in wash-boilers



Z. MGKINL'EYQ Wash-Boiler. v

Patented July 22,1879.-

INVENTOR:

WITNESSES BY Q;

ATTORNEYS.

N. PETERS, PHOTD-UTHOGRAFHE Max/" UNITED STATES PATENT; OFFICE.

ZELOTES MOKINLEY, on CAMDEN, MICHIGAN.

IMPROVEMENT lN WASH-BOILERS.

Specification forming part of Letters Patent No. 217,810, dated July 22,1879; application filed May 6, 1879.

of wash-boilers which have such construction that when placed over afire a circulation of water is induced through the clothes, the hotwater from below being raised by the generation of steam and poured overthe clothes in a stream or cascade to again find its way back to thechamber in the bottom of the boiler.

My invention consists in the construction of the false bottom of theboiler, as hereinafter described, and as shown in accompanying drawings,in which Figure 1 is alongitudinal section of the device, and Fig. 2 aplan view of the same inverted. Fig. 3 is a cross-section of it on line00 ac, Fig. 2.

- The false bottom is formed of a perforated horizontal plate, A, havingtubes or channels B on its upper side, a vertical perforated rim orflange, U, supporting said plate, a T-shaped tube, D, communicating withthe channels, and a tapered bell-mouthed tube, E, communicatin g withthe T-shaped tube. The construction and arrangement of these parts aremore particularly described as follows:

The plate A is provided with an opening, a, at each end and on each sideat points respectively equidistant from each other. A tube, B, extendsfrom each such opening a inward to the center of the plate A, where thefour communicate with the T-shaped tube D, which is rigidly attached totheir adjacent ends.

As shown in the drawings, the plate A forms the under side of the tubesB but they may be constructed separate or independent of the platewithout aifectin g the operation of the device. In the center of theplate A is fixed the short vertical tube E, whose rapidly- .flaringmouth extends down below the same,

while its contracted upper end enters the base of tube D, but is ofconsiderably-less diameter than the latter, so that an annular passageis left between them. The flange O has a row of small openings near itslower edge and extending around it.

In practice the false bottom (or its plate A) is made of sufficientlyless length and width than the boiler proper, in which it is used. toallow suitable space for passage of the water between-them, as shown byarrows in Fig. 1, in which the boiler is represented in dotted lines.This space between the false bottom and sides of the boiler shouldobviously equal or exceed in cubical capacity the aggregate cubicalcapacity of the tube E and the four openings to in plate A, and also thecapacity of the series of apertures in the rim (1.

The operation of the device is as follows: So soon as the water isbrought to the boilingpoint it will rise through the tubes E and D, anddischarge through the lateral arms I) I) of the latter upon the clothesresting on the plate A. Quickly percolating through these it will passoff the plate A around its edge and pass through the perforations in therim .0 below, where it will divide into different currents, a portionescaping through the holes a in said plate, and a portion returning tothe starting -point and again entering the bellmouthed tube. The currentthrough tubes E D is the positive one, and the currents through openingsat and tubes B are mainly induced currents, being created by the actionof the first. The directions of the several currents are indicated byarrows.

The constant and rapid discharge of boiling water upon and its passagethrough the clothes cleanses them in a comparatively short time.

What I claim is- The combination, with the plate havin g openings a, theperforated rim 0, and channels B, of the bell-mouthed tube E anddischarge-tube D, substantially as shown and described.

ZELOTES MOKINLEY.

W'itnesses:

FRANK MATHIAS, JOHN B. ALWARD'.

